Sorry! De informatie die je zoekt, is enkel beschikbaar in het Engels.
This programme is saved into My study choice.
This programme cannot be saved.
You are not logged in yet to My study choice Portal. Login or create an account to save your programmes.
Something went wrong, try again later.


The Orthodontics section has a clinic for special orthodontics and a clinic for general orthodontics.

The field of Orthodontics focuses on regulating the position of teeth in the jaw, and on the growth and development of the jaws. The section provides training for orthodontists.

What does orthodontics do?

Orthodontics deals with dental regulation. With the help of all kinds of braces teeth and jaws are properly set. This is done by 'orthodontists'. An orthodontist is a specialized dentist who, after completing his or her studies in dentistry, followed a 4-year course in dental regulation. ACTA also trains orthodontists.

More information about orthodontics

The core
If your teeth don't fit properly, you need braces. But what kind of brace? And what exactly does it do? Dolores receives an extensive explanation from Rene and Poejan, two almost graduated orthodontists ACTA Orthodontics. View the recordings of the Klokhuis (Dutch). 

Various websites
Care guide: braces.


If you need braces, the dentist will usually refer you to an orthodontist. But a referral is not always necessary. You can also come to us for braces without a referral from the dentist. You can make an appointment via Appointment and Information: (020) 598 0380. You will then receive a call for an intake interview within a few weeks. Then we will discuss with you which treatment is most suitable. The Orthodontics section generally does not have a waiting list.

second opinion

Would you like to know whether your treatment with another orthodontist is going in the right direction, or if you are not completely satisfied with a proposed treatment? At ACTA you can request a Second Opinion. Your teeth will be examined by an independent orthodontist from ACTA, after which you will receive a report of your conversation with our orthodontist. To make an appointment for a second opinion, please call Appointment and Information: (020) 598 0380.

Moving or canceling appointments

Appointments must be canceled at least 24 hours in advance if they are unable to attend. This can be done by calling (020) 59 80610/80611 or by sending an email to:

Who are we?

Emergency complaints

  • What to do in the event of an urgent complaint?

    Do you have problems with your braces or do you have extreme pain? You can contact the Orthodontics department during office hours from Monday to Thursday. You can reach us via: or (020) 59 80610/80611. PATIENTS WITH AN URGENT COMPLAINTS can call the Tandarts Bemiddelings Bureau (TBB) {020} 303 4500 outside office hours. If it is closed on weekends and during public holidays, you will receive instructions via voicemail. As a rule, the emergency department is taken over by the Dentist Mediation Bureau (TBB) 020 303 4500. E-mails sent to  are read on the next working day of the orthodontics section. On Fridays, the emergency service can also be reached from the Appointments & Information service on (020) 59 80380. The emergency service will be informed of your complaints. You will usually be called back immediately by the orthodontist on duty. Do the digital braces check or view the brochures about emergency complaints.

  • What is it about and what can you do?

    • Pain
      If you just got braces, or your braces have been re-tightened, your teeth can be a bit sensitive for the first few days. It is then better that you do not eat too hard food. If your teeth hurt a lot, take a paracetamol. Usually 3 to 7 days after the treatment, your teeth are usually used to the braces.

    • Bracket pricks
      Cover the stinging part of the brace with a ball of wax or chewing gum. If the bracket still irritates you because a piece of wire sticks out, you can cut the protruding wire yourself with a strong nail clipper. It may also be possible to bend the wire so that it no longer bothers you. Do you continue to suffer and does the next appointment take longer than a week? Belons then to ask if it is necessary to make an appointment.

    • Splint is loose
      Be careful with the loose splint. Call the section during office hours for an appointment. We are happy to help you put the splint back in place. Leaflet about Splint loose.

    • Splint is broken
      Make an appointment to get a new splint. Keep the broken splint and take it with you to the next appointment. This allows us to see what caused the splint to break to prevent it from happening again. Do not walk around with it for too long because the teeth can move again. Leaflet about Splint broken.

    • Lock loose
      Cover the loose lock with the white laundry you received from us. Do not attach rubber bands to a broken lock. If the lock is completely loose, you can carefully remove it yourself. Keep the lock and take it with you next time. Always call during our opening hours to report that a ring has come loose (Ortho section). We will then see if it is necessary to make another appointment. Folder about Lock loose.

    • Elastic loose
      Do you suffer from the loose elastic? Then carefully remove it from the lock yourself. It's not so bad if you lose a rubber band once. At the next appointment we will put in a new one.

    • Wire broken
      Call us always during our opening hours if you have a broken bow. We will then make a new appointment as soon as possible to replace the arch. Do you suffer from the broken bow? Then temporarily cover the stinging part of the arch with a ball of wax until we can help you.

    • Palate brace loose
      You can try to reattach the palate brace to the ring at the back of your mouth. If you can't reach it, maybe someone else can help you, for example your father or mother. Can't fix the bracket yourself? Then come and visit us. We are happy to make some time for you to reattach the palate brace.

    • Bite increase loose
      Has 1 increase come loose? This is not so bad, the other increase is still doing its job. Are both elevations loose? As long as you don't bite off the locks of your lower teeth, this is not a problem for a few days. If you do bite loose, call us to make a new appointment to renew the bite increases.

    • Ring on the tooth is loose
      Leave the outside brace on and make an appointment as soon as possible. If the ring is bothering you, cover it with a ball of wax. If the ring is completely loose, you can carefully remove it yourself. Keep the ring well and take it with you during your appointment.

    • Jaws hurt
      Because your jaws move to a different position due to the braces, for example with an activator, it is possible that you get muscle pain in your jaws for the first few days. This can sometimes feel like a mild headache. If you are in a lot of pain, take a paracetamol. In case of persistent complaints for more than a few weeks, please contact the section.

    • Ortho implant loose
      Are you not bothered by the loosened implant? Then let him sit and call us to make a new appointment. Does the dislodged ortho-implant hurt? Then call us immediately. Outside office hours you can call the emergency number.

    • Ortho implant hurts
      When an ortho-implant has just been placed, it can be a bit sensitive for the first few days. This is very normal. If the implant hurts a lot, take a paracetamol. After a few days, your teeth are usually completely used to the ortho-implant. If the gums around it are sore, you can cover it with wax.

More information

  • Have you been referred or do you want to become a patient?

    Send the information below to We will then send you a confirmation of the appointment.

    • Last name
    • Initials
    • Address
    • Zipcode and city
    • Date of birth (d/m/y)
    • Sex
    • 06 number
    • E-mail address
    • Citizen service number
    • Bank gironumber
    • Dentist
    • Name and number health insurance
  • Cost overview

    You can find the rates of Orthodontics ACTA via this link: kostenoverzicht

  • Do you want to refer a patient?

    If you want to refer a patient to the Clinic for Orthodontics for diagnosis and possible treatment, you can use downloadable prescription cards. You can of course also send a letter of referral to ACTA. Please indicate in both cases:

    1. Patient details:

    • Last name
    • Initials
    • Address
    • Zipcode and city
    • Date of birth (d/m/y)
    • Sex
    • Phone numbers
    • E-mail address
    • Citizen service number
    • Health insurer
    • Policy No
    • Name and number health insurance

    2. Referrer data:

    • Dentist name
    • Address
    • Zipcode and city
    • Phone number
    • E-mail address
    • Date reference

    3. Reason for Referral

    4. Other relevant dental and medical information

    Send the referral letter or card, with your signature, to the following address:

    ACTA, Orthodontics Section
    attn. Appointments & Information service
    PO Box 7822
    1008 AA Amsterdam

  • Postgraduate

    For more information about the Orthodontics specialization, go to Postacademisch onderwijs > specialisaties > Orthodontie

  • Research

    ACTA's research is subdivided into 2 research programmes: Oral Infections and Inflammations and Oral Regenerative Medicine with a focus on various subjects. Endodontics falls under the research program Oral Infections and Inflammations.

  • Contact